6. Minimization of material wear

2017 ◽  
pp. 67-75
Keyword(s):  
Material Wear

Peculiarities of tool material wear at polymeric composite blank cutting

2018 ◽  
Vol 2018 (7) ◽  
pp. 27-31
Author(s):  
Юрий Зубарев ◽  
Yuriy Zubarev ◽  
Александр Приемышев ◽  
Alexsandr Priyomyshev
Keyword(s):  
Tool Wear ◽  
Tool Material ◽  
Polymeric Composite ◽  
Physical Models ◽  
Technological Parameters ◽  
Tool Materials ◽  
Materials Used ◽  
The Impact ◽  
Material Wear

Tool materials used for polymeric composite blank machining, kinds of tool material wear arising at machining these blanks, and also the impact of technological parameters upon tool wear are considered. The obtained results allow estimating the potentialities of physical models at polymeric composite blanks cutting.

scholarly journals Vibration analysis of multi-body dynamic model of combat vehicle gearbox

2019 ◽  
Vol 287 ◽  
pp. 03005
Author(s):  
Jan Furch ◽  
Cao Vu Tran
Keyword(s):  
Dynamic Model ◽  
Vibration Signal ◽  
Technical Condition ◽  
Proposed Model ◽  
Combat Vehicle ◽  
Failure Conditions ◽  
The Individual ◽  
Multi Body ◽  
Material Wear ◽  
Body Dynamic

The combat vehicle gearbox, during the operation, generates vibration signals being related to the technical condition of gearbox. The analysis of the vibration signal could be used to determine accurately the behaviour of gearbox. Along with the development of the computer technology, the multi-body dynamic solution has been used widely to simulate, analyse, and determine the technical condition of gearbox. The purpose of this paper is to introduce the dynamic model of combat vehicle gearbox, and the simulation process based on the multi-body dynamic software, namely MSC.ADAMS. This proposed model allows the detection of failure conditions of individual gears and bearings in the gearbox. In this way, the fault conditions of the individual transmission components are identified. In the future, we would like to include a material wear module in the model, and we would like to model the life of the gearbox. We assume that we would also carry out accelerated tests of the gearbox to verify validity.

scholarly journals Benchmarking of premium rail material wear

Wear ◽  
2019 ◽  
Vol 436-437 ◽  
pp. 202990 ◽  
Author(s):  
P. Christoforou ◽  
D.I. Fletcher ◽  
R. Lewis
Keyword(s):  
Material Wear

Evaluation of Wear and Corrosion Behaviour of Hybrid Sintered Ti6Al4V Alloy

2019 ◽  
Vol 821 ◽  
pp. 321-326
Author(s):  
Olusoji Oluremi Ayodele ◽  
Mary Ajimegoh Awotunde ◽  
Mxolisi Brendon Shongwe ◽  
Adewale Oladapo Adegbenjo ◽  
Bukola J. Babalola ◽  
...  
Keyword(s):  
Corrosion Behaviour ◽  
Wear Test ◽  
Sintered Compact ◽  
Plasma Sintering ◽  
Wear And Corrosion ◽  
The Coefficient Of Friction ◽  
Spark Plasma ◽  
Worn Surface ◽  
Material Wear ◽  
Sintered Materials

Ti6Al4V alloy was consolidated by hybrid spark plasma sintering at a temperature of 1200 °C, pressure of 50 MPa, holding time of 5 min and heating rate of 100 °C/min. This resulted in the maximum value of sintered density. Microstructural evolutions of the sintered compact were analysed with SEM. Sliding wear test were accomplished at different sliding loads of 5, 8 and 10 N using ball on disc tribometer configuration with stainless steel as the counterface material. Wear debris obtained was found to contain mostly the sintered materials with minute traces of the counterface material. The coefficient of friction reaches the maximum with increase in applied load. Worn surface analyses revealed the wear mechanism was abrasive. The potentiodynamic polarisation of the sintered compact showed the sintered compact in 0.9 wt % NaCl solution exhibited more resistance to corrosion.

Evaluating the Effect of Natural Third Body Layers on Friction Using the Virginia Tech Roller Rig

2019 ◽  
Author(s):  
Ahmad Radmehr ◽  
Karan Kothari ◽  
Mehdi Ahmadian
Keyword(s):  
Virginia Tech ◽  
Contact Forces ◽  
Third Body ◽  
Traction Coefficient ◽  
The Coefficient Of Friction ◽  
Creep Force ◽  
Series Of Experiments ◽  
Roller Rig ◽  
Friction Reducer ◽  
Material Wear

In this study, the effect of natural third body layers on the coefficient of friction and contact forces is evaluated using the Virginia Tech-Federal Railroad Administration (VT-FRA) roller rig facility. The test rig allows us to precisely control the contacting surfaces to study its effect on the wheel-rail interface forces and moments. Experiments have shown while running the tests, a slight amount of wear occurs at the running surfaces. The worn material deposits at the surface and behaves like a “natural” third-body layer at the contact, resulting in changes in traction coefficient and creep forces. The material wear and its accumulation on the running surfaces change with wheel longitudinal load and creepage. A series of organized time-based experiments have been conducted with the running surfaces cleaned at the beginning of the test to study the effect of material wear accumulation on selected parameters including traction coefficient and creep forces over time. In order to highlight the effect of the natural third body layer on the wheel-rail contact forces, a series of experiments were conducted, in which the wheel and roller surfaces were cleaned in one case and left uncleaned in another. The results of the experiments are quite revealing. They indicate that when the running surfaces are cleaned after each test, the maximum creep force (or adhesion) is far lower than when the running surfaces are not cleaned, i.e., the natural third-body layer is allowed to accumulate at the surfaces. The results indicate that the wear debris act as a friction enhancer rather than a friction reducer.

scholarly journals Application of hard surfacing for repairing of agricultural parts

2013 ◽  
Vol 59 (No. 2) ◽  
pp. 61-67 ◽  
Author(s):  
J. Viňáš ◽  
J. Brezinová ◽  
A. Guzanová ◽  
M. Kotus
Keyword(s):  
Arc Welding ◽  
Base Material ◽  
Wear Test ◽  
Crushed Rock ◽  
Metallographic Analysis ◽  
Shielded Metal Arc Welding ◽  
Metal Arc Welding ◽  
Covered Electrodes ◽  
Material Wear

The contribution deals with the analysis of claddings quality realised by shielded metal arc welding with covered electrodes. For cladding, covered basic electrodes marked as E Z Fe 8 EN 14700 and E Z Fe 15 EN 14700 were used. The third type of electrode was experimentally made basic electrode with operating name EW11 (wolfram content 11%). New share made of C50R EN10083/1-98 was used as reference material. Quality of repairing deposits was evaluated by micro hardness measuring and by metallographic analysis of claddings and base material. Wear resistance of claddings was determined by weight loss during abrasive wear test by wading in following loose abrasive agents &ndash; Al<sub>2</sub>O<sub>3</sub> (corundum), crushed rock and arable soil. &nbsp;

Effect of Hardness on the Wear Behavior of Hybrid Metal Matrix Composites

2014 ◽  
Vol 984-985 ◽  
pp. 536-540
Author(s):  
K. Umanath ◽  
S.T. Selvamani ◽  
K. Palanikumar ◽  
T. Raphael
Keyword(s):  
Hybrid Composites ◽  
Wear Behavior ◽  
Aerospace Industry ◽  
Matrix Composites ◽  
Automotive Applications ◽  
Power Train ◽  
Advanced Material ◽  
Automobile Use ◽  
Material Wear ◽  
General Concern

Aerospace industry and automobile industries are enhanced performance necessary for materials with better qualities compare to conservative materials. In automotive areas, this is predominantly factual for power train employed as conflicting to body application. For each kind of appliance, description such as hardness of the material, wear resistance, temperature withstands ability, plasticity, fracture, fatigue strength, etc. It must be as high as possible, while parameters such as density and cost must be minimized; the latter is of general concern for automobile use and relatively inexpensive light aircraft. Because of their low density, the light metals based on aluminum, magnesium, and titanium are particularly attractive for both types of applications. In this paper, advanced material of Al6061/SiC/Al2O3hybrid composites is discussed, followed by a consideration of advanced material specifically in aerospace and automotive applications. Processing the lightweight metal, with enhanced hardness properties is presented.

Metrology of the burr amount - correlation with blanking operation parameters (blanked material – wear of the punch)

2008 ◽  
Vol 1 (S1) ◽  
pp. 1243-1246 ◽  
Author(s):  
H. Makich ◽  
L. Carpentier ◽  
G. Monteil ◽  
X. Roizard ◽  
J. Chambert ◽  
...  
Keyword(s):  
Operation Parameters ◽  
Material Wear
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